JB/T 5555-2013 English PDF (JBT5555-2013)

Delivery: 3 seconds. Download true-PDF + Invoice.
Get QUOTATION in 1-minute: Click JB/T 5555-2013
Historical versions: JB/T 5555-2013
Preview True-PDF (Reload/Scroll if blank)

JB/T 5555-2013: Transformers for machine tools
JB/T 5555-2013
JB
MECHANICAL INDUSTRY STANDARD
ICS 29.180
K 41
Filing No.. 40539-2013
Replacing JB/T 5555-2001
Transformers for machine tools
ISSUED ON. APRIL 25, 2013
IMPLEMENTED ON. SEPTEMBER 01, 2013
Issued by. Ministry of Industry and Information Technology of PRC
Table of Contents
Foreword... 3
Introduction... 4
1 Scope... 5
2 Normative references... 5
3 Terms and definitions, symbols... 6
3.1 Terms and definitions... 6
3.2 Symbols... 7
4 Classification... 7
5 Characteristics... 7
5.1 Structural type... 7
5.2 Specifications and parameters... 8
5.3 Overall dimensions and installation dimensions... 8
6 Product related information... 9
6.1 Information content... 9
6.2 Marking... 9
6.3 Installation, operation, maintenance instructions... 9
6.4 Packaging... 10
7 Normal use, installation, transportation conditions... 11
7.1 Normal use conditions... 11
7.2 Installation conditions... 11
7.3 Transportation and storage conditions... 12
8 Structural and performance requirements... 12
8.1 Structural requirements... 12
8.2 Performance requirements... 15
9 Tests... 18
9.1 Classification of tests... 18
9.2 Verification of structural requirements... 21
9.3 Verification performance requirements... 22
Transformers for machine tools
1 Scope
This standard specifies the terms and definitions, symbols, classifications,
characteristics, relevant product information, normal use, installation and transportation
conditions, structural and performance requirements and tests of control transformers
for machine tools (hereinafter referred to as transformers).
This standard applies to single-phase control transformers.
2 Normative references
The following documents are essential to the application of this document. For the dated
documents, only the versions with the dates indicated are applicable to this document;
for the undated documents, only the latest version (including all the amendments) is
applicable to this standard.
GB/T 2900.1 Electrotechnical terminology - Fundamental terms
GB/T 2900.15 Electrotechnical terminology - Transformer, instrument transformer,
voltage regulator and reactor
GB/T 5169.10-2006 Fire hazard testing for electric and electronic products - Part 10.
Glowing/hot-wire based test methods - Glow-wire apparatus and common test
procedure
GB/T 5169.11-2006 Fire hazard testing for electric and electronic products - Part 11.
Glowing/hot-wire based test methods - Glow-wire flammability test method for end-
products
GB 5226.1-2008 Electrical safety of machinery - Electrical equipment of machines
- Part 1.General requirements
GB/T 13384 General specifications for packing of mechanical and electrical product
GB 14048.1-2006 Low-voltage switchgear and controlgear - Part 1.General rules
3 Terms and definitions, symbols
3.1 Terms and definitions
The terms and definitions as defined in GB/T 2900.1, GB/T 2900.15, GB 14048.1-2006,
as well as the following terms and definitions, apply to this document.
3.1.1
Transformers for machine tools
Transformers with two or more electrically isolated windings, used as power
supplies for control circuits, lighting circuits, signal circuits, electronic equipment
in the electrical systems of machine tools and other mechanical equipment.
3.1.2
Rated supply voltage
The nominal voltage applied to the input terminal of the transformer, under normal
operating conditions.
3.1.3
Rated output voltage
The nominal value of the transformer output voltage, under normal operating
conditions.
3.1.4
Rated output power
The rated output power is equal to the product of the rated output voltage multiplied
by the rated output current of the transformer. When the transformer has multiple
independent output windings, the rated output power is equal to the sum of the
products of the rated voltage of each output winding multiplied by the rated current
of the winding.
3.1.5
No-load output voltage
The output voltage when no-load at rated supply voltage and rated frequency.
3.1.6
Load output voltage
The output voltage, when rated power is output at rated supply voltage and rated
frequency.
3.1.7
Output voltage of instantaneous power
The output voltage, when instantaneous power is output at rated supply voltage and
rated frequency.
3.2 Symbols
The main symbols specified in this document are as follows.
Ue - Rated supply voltage;
UH - Rated output voltage;
Ui - Rated insulation voltage;
Uk - No-load output voltage;
Um - Load output voltage;
UmΦ - Output voltage of instantaneous power.
4 Classification
4.1 According to the structure, it can be divided into shell type and core type.
4.2 According to the installation type, it can be divided into vertical type and horizontal
type.
5 Characteristics
5.1 Structural type
The transformer is generally an open structure; it can also be made into a shell structure
if necessary.
6 Product related information
6.1 Information content
The manufacturer shall specify the following related information.
a) Manufacturer name or trademark;
b) Product model and (or) name;
c) Standard number that the product complies with;
d) Year and month of manufacture;
e) Rated output power, rated supply voltage, rated output voltage (see 5.2.2.1);
f) Rated frequency (see 5.2.2.2);
g) Rated capacity of each output winding (if applicable);
h) Rated insulation voltage (see 5.2.2.3);
i) IP rating (if applicable) (see 8.1.6);
j) Pollution level (see 7.1.3.2);
k) Conformity mark and certification mark (if applicable).
6.2 Marking
6.1 The information content of items a) ~ g) shall be marked on the nameplate of the
transformer, so that complete information can be obtained from the manufacturer. The
markings shall be clear, indelible, easily identifiable, which shall not be marked on
screws and movable parts. If the location permits, the parameters of items h) ~ k) may
also be marked on the nameplate or transformer, or included in the documents published
by the manufacturer.
6.3 Installation, operation, maintenance instructions
The manufacturer shall specify the installation, operation, maintenance conditions of
the transformer during operation and after a fault, in its documents (such as the
instruction manual) or samples (if any).
If necessary, the transportation, installation, operation instructions of the transformer
shall specify the appropriate and correct installation, transportation, operation methods
of the transformer.
The manufacturer shall provide instructions, to recommend what measures the user
shall take to prevent short circuits.
6.4 Packaging
6.4.1 Packaging box (inner packaging)
The packaging box shall be accompanied by a product certificate; the packaging box
marking shall include the following.
a) Manufacturer name or trademark;
b) Product model and name and year and month of manufacture;
c) Rated output power, rated supply voltage, rated output voltage, rated frequency.
6.4.2 Packing box (outer packaging)
The transformer packaging box shall be sturdy, moisture-proof, dust-proof, which is
suitable for transportation. The box shall contain a packing list, product instructions,
etc. The gross weight of each box shall not exceed 50 kg. The outer wall of the
packaging box shall have obvious and durable markings, indicating the following
information.
a)...